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Alaric is getting on my nerves; you kill him, and he immediately revives near the Sanctuary (a very bad idea; I haven't encountered him in the Necropolis, and I haven't received the quest for the Castle). Here's another bug: the cloak increases spell power not by 10, but by 60, which is great! And here's something else that surprised me: the red creature walks through the Dungeon, but I'm not allowed to pass (this is where the bridge was built).
Added after 2 hours and 50 minutes
The same bug with the demon: all enemies are killed, but the battle doesn't end. I'm speechless, just cursing. I urge the author to play through their map from beginning to end without using the console, at least on the easiest difficulty level, and fix all this mess.